Allen Gilmer, Co-Founder and Executive Chairman at DrillingInfo, Inc., is not a man who minces words, an attribute that has served him well during a long career in the oil and gas industry. When it comes to the Permian Basin and the amount of oil and gas resource contained in it, he becomes positively loquacious.

"We should view the Permian Basin as a permanent resource," he says, "The Permian is best viewed as a near infinite resource - we will never produce the last drop of economic oil from the Basin."